Separating or classifying machine



Mm e; 1928.

W. A. RlDDELL SEPARATING 0R CLASSIFYING MACHINE Filed Dec. 10, 1925 2 Sheets- Sheet 1 MZ w Wm M March s, 1928.

. 1,661,501 w. A. RIDDELL '7 SEPARATING OR CLASSIFXING MACHINE Filed Dec. 10, 1925 2 Sheets-Sheet 2 L awawl'a ammdw a, 511 mm,

fi affoxmg more finely divided particles Patented Mar. 6, 1928.

. i UNITE STATES WIL'L'iAM A. RIZDZDELL, as resumes, MARYLAND.

snrmrme on CLASSIFYIHG MACHINE.

Application filed December 10, 1925. Serial No. 74,501.

'My invention relates broadly to the construction of classifying, separating and assorting machinery and more particularly to the constructionof a machinefo'r separating solid material into selected. sizes. L

One of the objects of my invention is to provide a separatorof granular material 1n which a plurality of driven rolls are arranged on an incli-nedplaneand thematerial passed over the rolls for separating the from the largerlunips and gnan-ules; V y 1 Another ob'ect of my invention 1stopro videa construction of separating machine forkgranular material in which a plurality of driven rolls 1are-wrjranged on an incline with means for passing. the material'tolae separated over therollsland preventing the material from being carried to one. side of the separator by IGfiSOll of the continued rotation of the rolls.

Still another object of my invention is to provide a, separating machine. utilizing a plurality of driven rollswhich may be adjusted in space relationship oneiwit respect to another with means directly over I the several rolls for preventing material which is passedover the rolls from being carried to one side of the separator bymovement of the rolls.

-A further object of myinvention is to provide a separator construction which 'is adjustable to select various sizes of material which is to be classified with adjustable means for controlling the passage of mate rial to be classified in such manner that the selected size of material may be obtained separate and apart from other sizes of naterial. y I

Other and further object-s of my invention will be understood from the specification hereinafter followingby reference to the ac companying drawings; in which:

Figurel is a side elevation" of the separating machine of my invention; Fig. 2 is a partial cross sectional view taken through the separating machine of my invention, showing the adjustable, separating plates whichlprovide over each of "the separating rolls in the machine; Fig. 3 is a, plan view illustrating the arrangement-of parts in the separating machine; Fig. 4 is a cross-set tional View taken through the separator on line 4-4 of Figs. Q'and 3; Fig. 5 is a fragmentary perspective view partially infcrossseetion showing the happier of the separating machine in which the material to be separate'd is deposited; and Fig. 6 is a partial cross-sectional view-showing the arrange ment of the adjust-ably spaced rollers and, the vertically adjustable separating plates which are positioned over the rollers. 7

Referring to the drawings in more detail, reference charactersl and Q represent the longitudinally extending side frames of the separator to which are secured the laterally extending frame member's 3 and 4; The

frame members 3 and 4-are slotted at 5 and 6 respectively. and adjustable bearing mem; 'bers arranged therein for the jour'naling of I have represented 1 the separator rolls. bearing members 7,, S, {9, .10, .i.-. 1,a-na .1 2m1 jus'tahly positioned in slot 6 of the end frame member 4, in such manner that they be set on selected centers lay loosening bolt members 7, 8?, 9 1-0, 11 and 19f respectively and sliding the bearings along the frame end member 1:. The bearings hiay also be longitudinally adjustable with respect-to tl'lje'separator frame by means of the inclined plate bearing surface'i", 8', 9' 10?, 11 and'12 At the opposite end of the separator frame and ad-justa-bly positioned in slot 5 of the end frame member 3, I provide hearings 14,15, 16,17, 18 a-nd 19.- These bearings maybe similarly adjusted by means of bolt members, as described in con nection with bearings Z to Hand as represented by the adjustable bolt member 19 in Figs. 1 and 2. Thebearings forinjou'rnals for the separator rolls 20,21 22, 23, 24 and 25 which extend longitudinally of the separator franiie. I The rolils may be spaced with respect to each other by ineanjs ozt' ya suitable gauge by which the centers ot the rolls may he changedfron time to time for gears 35,- 36, 37 etc. are adjustablelongh tudinally of shaft 38 in proportion to the adjustment-in the spacial relationship of the rollers 20, 21, 22, 23, 24L and 25. The casing 39 houses the gearing which drives the separator mechanism. A drive pulley 40 may be arranged on the shaft 38 and driven by any suitable prime mover which may be belted at 41 with the drive shaft 40. The separator frame is provided with a hopper 42 by which the material is concentrated upon the system of rolls. Extending laterally across the hopper 42, I provide angle pieces 43 and 4 which may be suitably secured to the side of the hopper by means of adjustable screw devices 44 and 44 The laterally extending angle pieces 43 and 44 contain a plurality of slots which I have represented more clearly in Fig. (3 at 44, 44 and 44, in which may be laterally and vertically adjusted screw members 49, 50, 51 and 52. As represented more clearly in Figs. 3 and 4 a similar set of screw members 45, 46, 47 and 48 are carried in the laterally extending angle pieces 43 and arranged to be laterally and vertically adjustable therein. The depending screw members are provided with U shaped heads which grip the upper sides of separating plates 53, 54, and 56 and permits such plates to be vertically adjusted with respect to the corresponding rolls.

In Fig. 6 I have shown the arrangement by which the guide plates may be raised or lowered with respect to the surface of the rollers to permit granular material of selected size to pass over the rollers. That is to say, the guide plates 53, 54, 55 and 56 may be lowered to establish a very small gap between the lower edges of the plates and the upper surface of rolls 21, 22, Q3 and 24 or the gap may be enlarged and this adjustment and spacial relation of the gu de plates may be in proportion to the spacial relation and adjustment of the rolls. It will thus be seen that the guide plates form means whereby the granular material which is passed through the separator may be prevented from being carried over agalnst one side of the hopper and compelled to follow a. path through the rollers for the selection of desired sizes of material.

lVhile I have described my constructioirin a certain preferred embodiment, I desire that it be understood that i'noditications may be made and that no limitations upon the invention are intended other than are imposed by the scope of the appended claims.

lVhat I claim and desire to secure by Letters Patent of the United States is as follows:

1. In a separating or classifying machine, the combination of a hopper, a plurality of downwardly inclined rollers disposed longitudinally of said hopper. a pair of laterally extending members disposed between the sides of said hopper and a plurality of guide plates depending from said laterally extending members and positioned over said rollers, each of said guide plates being adjustable toward or away from the rollers aligned therewith in a vertical plane for guiding material to be separated longitudinally along said rollers.

2. In a separating or classifying machine, the combination of a hopper, a plurality of rollers PtlSlt'lOllCtl longitmlinally of said hopper and spaced one from another for distances equal to the size of material which is to be separated from bulk. a pair of strip members disposed between the sides of said hopper and a plurality of plate members depending from said strip members and extending longitudinally of said rollers and in planes passing through the axis of said rollers for guiding the bulk material against said rollers in the process of separation.

3. In a separating or classifying machine, the combination of a downwardly inclined hopper. a plurality of rollers disposed longitudinally of said hopper, means for rotating said rollers, a pair of strip members laterally positioned across said hopper, a plurality of longitudinally extending plate members parallel with each of said rollers and disposed in planes passing through the axis thereof, said plate members being supported from said strip members relative to said hopper in such manner that material in bulk which is deposited in said hopper is prevented from being carried to one side of the hopper by movement of the rollers.

4. In a separating or classifying machine, the combination of a hopper, a. plurality of longitudinally extending rollers disposed in an inclined plane in said hopper, and a plurality of guide plates extending in planes passing through the axis of each of said rollers and arranged to be variably spaced over said rollers in accordance with the size of material to be separated by said machine. said guide plates being supported from said hopper and each guide plate having a thickness less than the gap between said rollers.

5. In a separating or classifying nuu-hinc. the combination of a hopper. a plurality of longitudimilly extending rollers disposed in an inclined plane in said hopper, frame members extending laterally of said hopper, screw members adjustable laterally and vertically within said frame members, said screw members carrying longitudinally extending guide plates which may be posi tioned in planes passing through the axes of said rollers for guiding the bulk material to be separated over said rollers and preventing the bulk material from being carried to one side of the hopper by movement of the rollers.

6. In a separating or classifying machine, the combination of ahopper, a plurality of longitudinally extending rollers disposed in an inclined plane in said hopper, frame members extending laterally of said hopper, screw members each having a screw threaded ltlt) shank and a U-shaped head adjustable verlower extremities thereof and the upper surtically and laterally Within said frame memfaces of said rollers for controlling thesize 10 bers, longitudinally extending plate memof material separated by said machine and hers carried in the U-shaped heads of pairs preventing the material from being carried of said screw members in such manner that to one side of the hopper by movement of said plates may be positioned in planespasssaid rollers. ing through the axis of each of said rollers In testimony whereof I affix my'signat'ure. and adjusted to vary the gap between the WILLIAM A. RIDDELL. 

